04-13-2018 01:28 AM
I have a lenovo U41-70 with i75500U cpu.
I notice an issue wuth the cpu speed when on battery.
When the battery charge goes below 30% the cpu speed drop to 0.48GHz constantly.
Cpu speed return to a normal behaviour as soon as I plug in.
I saw this same issue on different posts and for different laptops but did not see a proper fix for it.
As it seems to be a bios issue I upgraded the bios driver from BDCN28WW to BDCN71WW but it did not help.
Also I run Lenovo system update and update al the drivers.
I also checked the battery advanced setting but did not see anything related to the issue.
Why Lenovo does not provide a solution for this issue?
Does anybody found a solution for this?